[M4IF Technotes] B-VOPs in Simple-Scalable Profile ?

[Sassan Pejhan]

Dhinesh,
B-frames allow for temporal (as different from spatial)
scalability: since B-frames are not used as reference
frames, they can be dropped without impacting the decoding 
of other frames.
Regards,
Sassan
> -----Original Message-----
> From: Dhinesh [mailto:dhinesh   tataelxsi.co.in]
> Sent: Monday, June 23, 2023 5:21 AM
> To: technotes   lists.m4if.org
> Subject: [M4IF Technotes] B-VOPs in Simple-Scalable Profile ?
> 
> 
> 
> Hi,
> 
> MPEG-4 Video Simple-Profile does not include
> B-Frame.
> Advanced-Simple-Profile and Core-Profile and
> higher profiles include B-Frame.
> 
> Then shoudn't Simple-Scalable-Profile be
> Simple-Profile with Scalability?
> Why should it include B-Frame?
> 
> Ref:
> "Table 9-1 -- Tools for Version 1 Visual Object
> Types" in
> "ISO/IEC 14496-2:2001(E)".
> 
> Regards
> Dhinesh
> 
> 
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